374 
POPULAR SCIENCE REVIEW. 
EXPLANATION OF PLATE GUI. 
Fig. 1. Flower of willow, bearing one stamen, and one pistil. (Mag.) 
,, 2. Normal male flower of the same species. (Mag.) 
„ 3. Capsule of poppy, surrounded by secondary capsules, resulting 
from tbe substitution of pistils for stamens. (Nat. Size.) 
„ 4. Stamens of gourd, bearing ovules (after Berkeley). (Nat. Size.) 
„ 5. Pistil of Baeckea, bearing stamens in the interior in place of 
ovules. (Mag.) 
„ 6. Scale from double hyacinth, bearing an anther above, and two 
ovules beneath. (Mag.) 
„ 7. Filament of a rose, bearing below two imperfect polliniferous 
ovules, and two-celled anther, and terminating in a dilated 
stigma. (Mag.) 
„ 7a. Ovule from the above, compressed, and showing the partial con- 
version of its tissues to those of an anther. (Mag.) 
„ 7b. Pollen-gells from ovule. (Mag.) 
„ 7c. Spiral anther-cells from ovule. (Mag.) 
,, 7i). Normal ovule of rose. 
„ 8. Hop, bearing male and female flowers on the same inflorescence. 
